Exhaust purifying device

Exhaust purifying device

  • CN 102,257,250 A
  • Filed: 09/16/2009
  • Published: 11/23/2011
  • Est. Priority Date: 12/19/2008
  • Status: Active Application
First Claim
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1. an Exhaust gas purifying device is characterized in that, comprising:

  • Catalyst changer, it uses by adding ammonia that water decomposition generates from aqueous solution of urea to come the nitrogen oxide the exhaust is reduced purification;

    The aqueous solution of urea jar, it stores aqueous solution of urea;

    Jet blower, its exhaust injected upstream to described catalyst changer is supplied with aqueous solution of urea;

    AndThe aqueous solution of urea supplier, it to be supplying with the aqueous solution of urea that is stored in described aqueous solution of urea jar with the corresponding flow of engine operating status to described jet blower,On the carrier of described catalyst changer, the specific length in the exhaust inflow side partly is coated with the ammonia sorbing material, and on the other hand, the remainder in the exhaust outflow side is coated with catalyst for reduction of oxides of nitrogen.

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